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CVE-2019-11135

Published: 12 November 2019

TSX Asynchronous Abort condition on some CPUs utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.

From the Ubuntu Security Team

Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida, Giorgi Maisuradze, Moritz Lipp, Michael Schwarz, Daniel Gruss, and Jo Van Bulck discovered that Intel processors using Transactional Synchronization Extensions (TSX) could expose memory contents previously stored in microarchitectural buffers to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information.

Notes

AuthorNote
tyhicks
This issue only affects processors manufactured by Intel that support
Intel® Transactional Synchronization Extensions (TSX)
Priority

High

CVSS 3 base score: 6.5

Status

Package Release Status
intel-microcode
Launchpad, Ubuntu, Debian
bionic
Released (3.20191112-0ubuntu0.18.04.2)
disco
Released (3.20191112-0ubuntu0.19.04.2)
eoan
Released (3.20191112-0ubuntu0.19.10.2)
focal
Released (3.20191115.1ubuntu1)
precise Does not exist

trusty
Released (3.20191112-0ubuntu0.14.04.2)
upstream Needs triage

xenial
Released (3.20191112-0ubuntu0.16.04.2)
linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-69.78)
disco
Released (5.0.0-35.38)
eoan
Released (5.3.0-22.24)
focal Not vulnerable
(5.4.0-9.12)
precise
Released (3.2.0-144.191)
trusty
Released (3.13.0-175.226)
upstream
Released (5.4~rc8)
xenial
Released (4.4.0-168.197)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by 1b42f017415b46c317e71d41c34ec088417a1883
linux-aws
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1054.56)
disco
Released (5.0.0-1021.24)
eoan
Released (5.3.0-1007.8)
focal Not vulnerable
(5.4.0-1005.5)
precise Does not exist

trusty
Released (4.4.0-1058.62)
upstream
Released (5.4~rc8)
xenial
Released (4.4.0-1098.109)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-1021.24~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial
Released (4.15.0-1054.56~16.04.1)
linux-azure
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1025.27~18.04.1)
disco
Released (5.0.0-1025.27)
eoan
Released (5.3.0-1007.8)
focal Not vulnerable
(5.4.0-1006.6)
precise Does not exist

trusty
Released (4.15.0-1063.68~14.04.1)
upstream
Released (5.4~rc8)
xenial
Released (4.15.0-1063.68)
linux-azure-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1007.8~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial Ignored
(was needs-triage now end-of-life)
linux-gcp
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1025.26~18.04.1)
disco
Released (5.0.0-1025.26)
eoan
Released (5.3.0-1008.9)
focal Not vulnerable
(5.4.0-1005.5)
precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial
Released (4.15.0-1049.52)
linux-gcp-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1008.9~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1048.51)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1025.26~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1011.12~18.04.1)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-35.38~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial
Released (4.15.0-69.78~16.04.1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(was pending \[5.3.0-22.24~18.04.1\] now end-of-life)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial Ignored
(was needs-triage now end-of-life)
linux-kvm
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1050.50)
disco
Released (5.0.0-1022.24)
eoan
Released (5.3.0-1007.8)
focal Not vulnerable
(5.4.0-1004.4)
precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial
Released (4.4.0-1062.69)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

precise
Released (3.13.0-175.226~12.04.1)
trusty Does not exist

upstream
Released (5.4~rc8)
xenial Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty
Released (4.4.0-168.197~14.04.1)
upstream
Released (5.4~rc8)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1063.72)
disco Ignored
(reached end-of-life)
eoan
Released (4.15.0-1063.72)
focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial Ignored
(was needs-triage now end-of-life)
linux-oem-5.6
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Not vulnerable
(5.4.0-1002.4)
precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1027.31)
disco Ignored
(reached end-of-life)
eoan
Released (5.0.0-1027.31)
focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1029.32)
disco
Released (5.0.0-1007.12)
eoan
Released (5.3.0-1006.7)
focal Not vulnerable
(5.4.0-1005.5)
precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial
Released (4.15.0-1029.32~16.04.1)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-1007.12~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1011.12~18.04.1)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1052.56)
disco
Released (5.0.0-1022.23)
eoan
Released (5.3.0-1012.14)
focal Ignored
(was needed now end-of-life)
precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial
Released (4.4.0-1126.135)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1017.19~18.04.1)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1069.76)
disco Ignored
(was pending \[5.0.0-1026.28\] now end-of-life)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc8)
xenial
Released (4.4.0-1130.138)